init_disp.c

/* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. *//* * From: @(#)init_disp.c 5.4 (Berkeley) 6/1/90 */char id_rcsid[] =
"$Id: init_disp.c,v 1.12 1999/11/25 04:23:38 dholland Exp $";
/* * Initialization code for the display package, * as well as the signal handling routines. */#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <signal.h>#include <termios.h>#include "talk.h"staticvoid sig_sent(int);
/* * Set up curses, catch the appropriate signals, * and build the various windows. */void
init_display(void)
{
real_init_display();
signal(SIGINT, sig_sent);
signal(SIGPIPE, sig_sent);
/* let them know we are working on it */
current_state = "No connection yet";
}
/* * Trade edit characters with the other talk. By agreement * the first three characters each talk transmits after * connection are the three edit characters. */void
set_edit_chars(void)
{
char buf[3];
int cc;
struct termios tios;
int cerase, lerase, werase;
tcgetattr(0, &tios);
cerase = tios.c_cc[VERASE];
lerase = tios.c_cc[VKILL];
werase = tios.c_cc[VWERASE];
if ((unsignedchar)werase == 0xff) {
werase = '\027'; /* control W */
}
set_my_edit_chars(cerase, lerase, werase);
buf[0] = cerase;
buf[1] = lerase;
buf[2] = werase;
cc = write(sockt, buf, sizeof(buf));
if (cc != sizeof(buf) )
p_error("Lost the connection");
cc = read(sockt, buf, sizeof(buf));
if (cc != sizeof(buf) )
p_error("Lost the connection");
cerase = buf[0];
lerase = buf[1];
werase = buf[2];
set_his_edit_chars(cerase, lerase, werase);
}
void
sig_sent(int signum)
{
(void)signum;
message("Connection closing. Exiting");
quit(1);
}